Sanding device for automobiles



Oct. 26 1926..

J. F. MANDERNACK SANDING DEVICE FOR AUTOMOBILES Filed Feb. '7, 1925 6 MNE/ WW 7 M Z (a w i m 0 w M "IIIllllIIlllIIIIIl/llj .LITVEFI 121R; jazz;FflanderzzaC/c.

is erated only Patented Oct. 26, 1926.

1.10111? 1'.- mannnmmcx, or cmcaeo, ILLINOIS.

1,604,735 FFICE.

PATENT 0 SANDING DEVICE FOR AUTOMOBILES.

Application filed February 7, 1925. Serial No. 7,456.

This invention relates to a sanding device for vehicles adapted to a plysand 'in front of the brakin wheels.o the vehicle.

It is an object oi this invention to provide an automaticsand applyingapparatus for vehicles wherein the sanding mechanism plie and isrendered totally inoperative at the will of the driver.

It is a further object of this invention to provide an automaticallyoperating sander of the class described wherein the sanding operationcan be manually controlled in addition to the automatic control as incases where additional tractive effort is required or as preventive ofskidding under slippery road conditions.

It is still another object of this invention to provide a sanding deviceof the class described automatically operable by either or both theregular or emergency brakes.

Other and further important objects of this invention will be a closuresin the spec' companying drawings.

This invention (in a preferred form) is illustrated in the drawings andhereinafter more fully described.

On the drawings:

Fi re 1 is a plan view" of a vehicle chassis to w iich a deviceembodying features of this invention has been applied.

Figure 2 is an enlarged detail elevation of the device.

Figure 3. is an enlarged section on the line III III of Figure 1.

Figure 4 is an enlarged fragmentary view of one-of the sand valves.

Figure 5 is a. detail of the manual control for operating the sandingdevice.

Figure 6 is a section on the line VI-V of Figure 2.

As shown on the drawings: An automobile chassis is shown in th drawings,wherein the frame 10 is indicated, as w 11 as the front aizle 11, rearaxle 12, wheels 13-, brake mechanism 14 on t rear wheels, and theintermediate brake-shaft 15 crosswise of the chassis frame. The brakesare operated by the hand lever 16 and brake rod 17 for the emergencybrakes and the edal 18 and brake rod 19 for the foot rakes, both rodsactuating levers on component parts of the brake-shaft 15 as is standardpractice.

parent from the discation and the acwhen the brakes are apthe bar 20will bemoved to To release the The exigencies of the chassis layoutusually require that the emergency and foot levels, vice of thisinvention an L-shaped bar 20, as shown-in Figure'6, spanning-the tworods 17 and 19 to form the actuating-member for the sanding apparatus.The mounting of the. bar 20 on the rods 17 and 19 is such that inpulling either rod to actuate'its brake, one end of chassis about theother end as a pivot. If both brakes are' applied the center of the barwill be advanced correspondingly farther, resulting in a greaterapplication of sand, as will be described hereinafter.

Sand receptacles 21 suitable way on the braking wheels are mounted inany chassis adjacent the and have outlet pipes 22 the front of the atthe same time normally closed by flap valves 23. Rods 24 extend fromthese valves to levers 25.0n an operating shaft 26 mounted transverselyof the vehicle and as shown in'Figure 2 supported by-the running boards27 which may also carry the sand receptacles 21. -A. central lever 28 onthe shaft 26 carries a rod .29

' with a hook 30 adapted to engage over the bar 20 on the brake rods.Applying either brake moves the bar 20 and thereby acts through the rod29, shaft 26'and rods "24 to open the-sand valves 23. o

In order to provide for a manual control of the sanding apparatus whenit is desired to apply sand independently of the brakes to improveskidding, a dash consisting of a knob31 and cord 32 trained the tractionor to prevent pull control is provided,

over suitable pulleys 33 to engage a crank 34 on the shaft 26.

In order to prevent the automatic operation of the sanding device underfavorable road conditions, means are rovided to lift the rod 29 off thebar 20, as s own by dotted lines in Figure 2. This comprises a bellcrank member 35 linked to the rod 29 at 36 and having a plunger 37arranged conveniently for the operation by. the driver. When thisplunger is pressed downwardly until the notch 38"..therein engages theedge of the.

aperture 39 in the floor boards. to retain the plunger against the forceof the spring 40. plunger'only requires a slight forward movement suchas a kick by the operator. To insure positive retention of the plungerav curled spring 41 is mounted partly in the aperture 49 to press theplunger rearwardly.

I am aware that many changes may be made, and numerous details ofconstruction may be varied through a wide range without departing fromthe principles'of this invention, and I therefore do not purposelimiting the patent granted hereon,'other-' wisethan necessitated by theprior art.

I claim:'

In combination with a vehicle and the brake actuating m hanism thereof,a bar bridging the hand and foot brake pull rods and adapted to be movedby the actuation of either brake rod, sand discharging mechanism carriedby the vehicle, a hooked member associated with the dischargingmechanism and adapted in one position to engage said bar, and manuallycontrolled means for disengaging said hookedmember from said bar.

In testimony whereof I scribed by name.

JOHN F. MANDERNACK.

have hereunto sub-

